CAT Practice Question and Answer
8Q: Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is : 1863 05b5cc6eee4d2b4197774ef09
5b5cc6eee4d2b4197774ef09- 183false
- 289false
- 385true
- 479false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "85"
Explanation :
Answer: C) 85 Explanation: Since the numbers are co-prime, they contain only 1 as the common factor.Also, the given two products have the middle number in common.So, middle number = H.C.F of 551 and 1073 = 29;First number = 551/29 = 19Third number = 1073/29 = 37.Required sum = 19 + 29 + 37 = 85.
Q: Which is the first country in the world to pay a basic income to randomly picked citizens on a national level, with the aim of dismissing poverty, motivate people to join work force and decrease unemplyment ? 1863 05b5cc771e4d2b4197774ff99
5b5cc771e4d2b4197774ff99- 1Canadafalse
- 2USAfalse
- 3Finlandtrue
- 4Germanyfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "Finland"
Explanation :
Answer: C) Finland Explanation:
Q: Which country have declared 2020 'Unique Year for Space Sector' ? 1863 05b5cc6c0e4d2b4197774db23
5b5cc6c0e4d2b4197774db23- 1United Arab Emiratestrue
- 2Englandfalse
- 3USAfalse
- 4Indiafalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "United Arab Emirates"
Explanation :
Answer: A) United Arab Emirates Explanation:
Q: Currency exchange rates are based on 1862 05b5cc62ce4d2b4197774b8f7
5b5cc62ce4d2b4197774b8f7- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
The amount of money you’ll get for a given amount of your country’s currency is based on internationally determined exchange rates. Exchange rates can be either fixed or floating. Fixed exchange rates use a standard, such as gold or another precious metal, and each unit of currency corresponds to a fixed quantity of that standard that should (theoretically) exist.
Q: A train-A passes a stationary train B and a pole in 24 sec and 9 sec respectively. If the speed of train A is 48 kmph, what is the length of train B? 1862 05b5cc698e4d2b4197774c613
5b5cc698e4d2b4197774c613- 1200 mtstrue
- 2180 mtsfalse
- 3160 mtsfalse
- 4145 mtsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "200 mts"
Explanation :
Answer: A) 200 mts Explanation: Length of train A = 48 x 9 x 5/18 = 120 mts Length of train B = 48 x 24 x 5/18 - 120 => 320 - 120 = 200 mts.
Q: I go around and in the house but never touches the house. What am I? 1860 05b5cc632e4d2b4197774b9bd
5b5cc632e4d2b4197774b9bd- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Te Sun. From the time rising it goes around the house upto sunset, but never touches the house.
Q: A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days will A and B together can complete that work ? 1859 05b5cc6c0e4d2b4197774db14
5b5cc6c0e4d2b4197774db14- 136false
- 240true
- 342false
- 438false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "40"
Explanation :
Answer: B) 40 Explanation: Remaining work = 1 - 9/10 = 1/10 => A & B together completes 1/10 of work in 4 days => 1 work can completed in ------ ? days Let it be x days => 4110=x1 => x = 40 days. Hence, A & B together can complete the work in 40 days.
Q: Light travels slowest in 1859 05b5cc69de4d2b4197774c924
5b5cc69de4d2b4197774c924- 1Glasstrue
- 2Waterfalse
- 3Airfalse
- 4Vacuumfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "Glass"
Explanation :
Answer: A) Glass Explanation: Because the refractive index of glass is highest, light travels slowly in Glass. We know that the speed of light depends on the refraction index. The higher the index of refraction is, the slower the speed of light is. R.I of air and vacuum = 0 (air is a teeny bit more but can be taken as 0) R.I of water = 1.33 R.I of glass = 1.4. Hence, Light travels slowest in Glass.